Objective We aimed to investigate the attitude and suggestion from doctors, pharmacists and civil servants concerning brain death and organ transplantation and the legislation. Methods A questionnaire with 10 sections and 44 questions was designed and distributed. The effective questionnaire data was then recorded and checked for descriptive analysis. Results In 1 400 questionnaires distributed, 1 063 were responded and 969 of them were valid and analyzed. The respondents showed an incomplete understanding of brain death and organ transplantation laws. Seventy-four percent of the respondents recognized and accepted the standard of brain death. They agreed that legislation should be involved in the removal of organs for transplantation, the future use of the organs, and insurance and compensation for the donor for possible health risks induced by organ removal. Of the 969 respondents, 92% considered it necessary to have legislation in brain death and organ transplantation, and 61% thought that it is time to legislate. Conclusion Legislation for brain death and organ transplantation is urgent and timely in China. The laws must include the respective rights and obligations of patients, close relatives, and medical institutions. Educating the public about brain death and organ transplantation should also be encouraged in a variety of ways.
Organ transplantation is a critical treatment for end-stage organ diseases, yet postoperative infections significantly affect patient outcomes. Traditional diagnostic methods for infections often fall short in meeting the demands of precise prevention and treatment due to limitations in sensitivity, specificity, and speed. Targeted nanopore pathogen sequencing technology, characterized by its long-read capability, real-time detection, and adaptability, has shown unique potential in pathogen identification, structural variation analysis, and antimicrobial resistance gene profiling. This offers new insights into the prevention and management of postoperative infections. This expert consensus focuses on the standardized application of this technology in managing infections following organ transplantation, addressing its principles, clinical recommendations, and diagnostic workflows. By exploring its features and value in infectious disease diagnosis, the expert consensus provides standardized guidance on sample processing and result interpretation. The development of this consensus aims to promote the rational use of nanopore sequencing in diagnosing and treating post-transplant infections, enhance diagnostic accuracy and efficiency, improve patient outcomes, and facilitate the widespread adoption of this technology.
In recent years, breakthroughs in genetic engineering (GE) and cloning technology have led to the successful cultivation of “designated pathogen free (DPF) xenotransplantation (XENO) medical (M) pigs” (hereinafter referred to as GE-DPF-XENO-M pigs). Based on GE-DPF-XENO-M pigs, a large number of xenotransplantation experiments with non-human primates (NHPs) as recipients basically answered the most concerned questions: overcoming hyperacute rejection and cross species infection. These achievements directly accelerate to the emergence of a new “xenotransplantation subclinical research model”. At the end of 2021, Montgomery and Porrett teams in the United States successively transplanted GE pig kidney into the remains of 3 brain dead cases, no hyperacute rejection occurred after 48–72 hours. These three subclinical studies provide a scientific basis for xenotransplantation into clinical research. On January 7, 2022, Griffith, Maryland, USA, etc. transplanted a GE pig heart to a patient with severe heart failure and survived for 59 days. The above progress shows that xenotransplantation has taken a key step towards the stage of clinical research, which is worthy of our peers’ attention and reference.
肝脏移植、心脏移植及肾脏移植等已广泛开展，大批受者长期存活。本文现就这组特殊人群在移植术后患胆道结石病的机理及其处理原则介绍如下。1器官移植受体胆石病的发生机理肝移植术后胆管结石与胆泥形成并引起胆道梗阻可随时发生。除了明确的结石外，胆泥形成胆管铸形并广泛分布于肝内胆管也有报道。胆管粘膜损害、胆管梗阻、移植肝的冷、热缺血、感染及胆固醇过饱和等都在胆管结石形成过程中发挥作用，但胆管梗阻可能是肝移植术后胆管结石形成的最重要因素［1］。胆管结石和胆泥形成的患者，绝大多数都伴有胆管狭窄，这个狭窄可以发生在胆管胆管吻合口和胆管空肠吻合口，也可发生在非吻合口处的胆管。胆管内异物如T型管或内支撑管也可作为结石形成的核心。除了这些引起胆汁淤积的物理学原因外，环孢素A（CsA）在胆石发生中也起了作用［2］： 它可抑制胆汁分泌，促进胆汁淤积，而FK506（普乐可复）似乎没有这方面的副作用。此外，肝移植受者胆汁中胆固醇呈过饱和状态，且T管引流及胆酸池的减少还加重这种状态。目前还不清楚胆道重建方式对胆道结石形成有没有影响。但从理论上讲，胆肠吻合会增加肠源性细菌进入胆道的机会，从而导致胆红素去结合化，并进一步形成色素石。但到底是胆管对端吻合还是胆肠吻合后更易形成结石，目前尚无详尽研究。
Objective To review the research progress of Toll-like receptors （TLRs） signaling and its effects in organ transplantation. Methods The structural and functional features of TLRs and their ligands were summarized，the literatures in recent years about the research progress of TLRs signaling in animal experiment and clinical organ transplantation were reviewed. Results TRLs played an important role in the organ transplantation，the activation of TLRs could activate the specific immune system，and contribute to ischemic reperfusion injury，acute and chronic allograft rejections，and induce the immune tolerance. Early treatment intervention could reduce the activation of TRLs through ischemic reperfusion injury in the organ transplantation，and improve the allograft survival. The efficient immunosuppressive drugs which aimed at the related immunosuppressive target in immune and its signal transduction pathway could reduce ischemic reperfusion injury in the organ transplantation and immune rejection. Conclusions TRLs signaling plays an important role in ischemic reperfusion injury，immune rejection，and immune regulation.
ObjectiveIn order to provide a data base for fund project applicants and funding priorities, we would summarize the basic situation and key points of basic research in liver transplantation by analyzing the projects funded by the Natural Science Foundation of China (NSFC) in the field of liver transplantation.MethodsThrough the big data knowledge management and service platform of NSFC, internet-based science information system, and shared service network of NSFC, we searched the funding project information in the liver transplantation relevant field from 2010 to 2019, then analyzed the effectiveness of the Young Scientists Fund of NSFC in promoting young researchers and the research focus and development direction of funding projects.ResultsIn the latest 10 years, NSFC persistently and stably funded the basic research in the field of liver transplantation, with the total number of funding projects was 387, and the funding budget was 198.215 million yuan. The main types of funding projects were the General Program and the Youth Science Fund. There were 210 General Program project (54.3%) with an amount of 113.14 million yuan (57.1%), 127 Young Scientists Fund (32.8%) with an amount of 27.9 million yuan (14.1%), and 22 Fund for Less Developed Regions (5.7%) with an amount of 9.03 million yuan (4.6%). Sun Yat-sen University and Zhejiang University were far ahead of other supporting institutions in both the total number of projects undertaken and the amount of funds granted. The youth/surface ratio reached as high as 72.2% (13/18). The conversion rate of Young Scientists Fund to higher-level projects reached about 50%, which was significantly higher than the overall level of 24.7% (21/85) in the field of liver transplantation. The funding projects were mainly distributed in application code H0318 (liver regeneration, liver protection, liver failure, and artificial liver, 58, 15.0%), H0321 (organ transplantation of digestive system, 169, 43.7%), and H1006 (organ transplantation and transplantation immunity, 50, 12.9%). The main research fields were transplantation immunity and liver injury and liver protection. At the same time, projects such as graft function and complications of liver transplantation were also funded. There were few studies on the immune status of long-term survival in patients after liver transplantation and the mechanism on prevention of immunosuppressant-related diseases.ConclusionsThe NSFC has a great leading effect on the discipline development and talent cultivation of liver transplantation. However, there are still some problems in the discipline layout, such as the lack of attention to the mechanism of long-term graft function and chronic immune rejection.
目的 总结活体部分小肠移植在治疗短肠综合征合并肠瘘中的临床经验。方法 1例短肠综合征合并肠瘘患者接受其子的150 cm 回肠，供肠动、静脉分别与受体的腹主动脉和下腔静脉行端侧吻合，受体残余空肠与供体回肠近端行端端吻合，受体结肠与供肠远端行端侧吻合，供肠远端造瘘作为观察窗，术后给予免疫抑制等治疗。 结果 患者小肠移植术后恢复顺利，肠道功能恢复，血管吻合口通畅，正常生活110 d后因心脏意外死亡。结论 短肠综合征合并肠瘘患者实施活体部分小肠移植是可行的，植入肠管的血管植入技术对小肠移植成功非常重要。
As more and more issues have emerged in organ transplantion cases, there is an increasing dispute about the definition of death: whether the criteria of cardiopulmonary death or brain death should be applied. The conflict between rights and obligations in brain death and organ transplantion is becoming ever evident, and there is a need for clarity on the issue of death and organ transplantion. This needs to come through legislation, which would be the most economical and effective intervention to provide this clarity. The authors believe that the National People’s Congress of China (NPC), the Standing Committee of NPC, the State Council of China and the Supreme People’s Court of China may get involved in the legislation for issues related to brain death and organ transplantion. As for the selection of decrees related to brain death and organ transplantion, all provinces, autonomous regions and centrally-governed municipalities can not exercise corresponding local legislative power except for special economic zones. After brain death and organ transplant related laws, administrative regulations, local decrees, autonomous decrees and special decrees have been settled, relevant executive legislation may be enacted. During such a legislative procedure, pilot programs can be adopted so as to enhance the applicability and success rate of the legislation of brain death and organ transplant.
Objective To investigate the impact of immunonutrition in organ transplantation.Methods The literatures of recent years on the studies of immunonutrition in organ transplantation were reviewed. Results Immunonutrition including ω-3 fatty acid and special amino acids etc could reduce inflamation and supress immunal response following organ transplantation markably. Conclusion Application of immunonutrition associated with immunosupress could take the place of traditional steroids completely in the treatment following organ transplantation, even shorten clinical course of immunosupress.